New test suite "Tactical Insanity"

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peter
Posts: 3419
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: New test suite "Tactical Insanity"

Post by peter »

Eelco de Groot wrote: ↑Tue May 29, 2018 6:06 pm
r5k1/R5p1/p4p1p/1p1b1P2/8/4B3/2B2K2/8 w - -

Engine: Kaissa III (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.

...
Image
(4.681.820.821) 2854

35/44 56:14 +2.72 1.Bb3 Rd8 2.Bb6 Bxb3 3.Bxd8 Bc2
4.Be7 Bxf5 5.Rxa6 Kf7 6.Bb4 Be6
7.Rb6 Bc4 8.Rb7+ Kg8 9.Ke3 Bf1
10.Bd6 Bc4 11.Kd4 Bf1 12.Rc7 h5
13.Ke4 Bh3 14.Bc5 (9.008.460.022) 2669
But at this one Kaissa's output, Eelco, 2.Bb6 seems to be suboptimal.
After 1.Bb3 Rd8 2.Ra8 I get this one after some Forward- Backward:

R2r2k1/6p1/p4p1p/1p1b1P2/8/1B2B3/5K2/8 b - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

2...Bxb3 3.Rxd8+ Kh7 4.Bd2 Bc2 5.Rd5 Be4 6.Rc5 Bh1 7.Bb4 Kh8 8.Ke3 Kg8 9.Rc7 Bd5 10.Rc8+ Kh7 11.Rc5 Bg2 12.Rc7 Kg8 13.Rc8+ Kh7 14.Kf4 a5 15.Bxa5 Bd5 16.Kg3 Bc4 17.Rc5 Bf1 18.Rc6 Kg8 19.Bc3 Be2 20.Kf4 Kf7 21.Ra6 Bd3 22.Ra8 Ke7 23.Bb4+ Kd7 24.Ra7+ Kd8 25.Rxg7 h5 26.Bc3 Be2 27.Bxf6+ Kc8 28.Be5 b4 29.f6 Ba6 30.Rg8+ Kd7 31.f7
+- (14.42) Depth: 43/69 00:01:04 1927MN, tb=16763142

And after full Backward to the starting position, (having had some Forward after 1.Bb3 Bxb3 too):

r5k1/R5p1/p4p1p/1p1b1P2/8/4B3/2B2K2/8 w - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

1.Bb3 Bxb3 2.Rxa8+ Kh7 3.Rxa6 Bc2 4.Rb6 b4 5.Rxb4 Bxf5 6.Rb5 Bh3 7.Kf3 Bc8 8.Bg1 Bh3 9.Ra5 Be6 10.Kf4 Kg6 11.Rb5 Kh7 12.Rb7 Bc4 13.Bd4 Kg8 14.Kf5 Bd5 15.Ra7 Kf8 16.Rc7 Ba2 17.Ke4 Kg8 18.Ra7 Bb3 19.Bg1 Kf8 20.Bc5+ Kg8 21.Kf3 Bd5+ 22.Kf4 Bc6 23.Bb6 Be8 24.Kf5 Bf7 25.Ke4 Be6 26.Bg1 Bb3 27.Rc7 Be6 28.Be3 Ba2 29.Ra7 Bb3
+- (4.07) Depth: 51/71 00:08:42 17827MN, tb=93680431


There is progress in this output- line, at the end of it, there's this one:

6k1/R5p1/5p1p/8/4K3/1b2B3/8/8 w - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

30.Kd4 h5 31.Kc5 Bd1 32.Kd5 Bg4 33.Kd6 Kf8 34.Bc5 Bf5 35.Kc7+ Kf7 36.Kd8+ Ke6 37.Rxg7 Bg4 38.Rd7 f5 39.Rd6+ Ke5 40.Ke7 Bh3 41.Rd8 Bg4 42.Bb6 Bh3 43.Bc7+ Ke4 44.Kf6 Bg4 45.Bb6 h4 46.Rd4+ Kf3 47.Ke5 Ke2 48.Rd8 Ke1 49.Bc5 h3 50.Kf4 Bh5 51.Bg1 Bg4 52.Bh2 Kf1 53.Bg3 Kg2 54.Rd2+ Kf1 55.Kg5 Kg1 56.Rf2 Kh1 57.Bh2 Bf3 58.Kxf5 Bg2 59.Bg3 Bf1 60.Rxf1+ Kg2
+- (132.55) Depth: 51/64 00:07:31 14675MN, tb=224675243


Maybe there are chances for Black to build up a fortress yet, but I don't think so.

Interesting position anyhow.

About test postions generally speaking:
Problem to me is always only to collect positions of certain level of difficulty for automatic suites to judge by move "found or not found".

Judging eninges' outputs and evals otherwise can be done with certain solution- lines instead as well as with any position of interest.

Tactical ones, "positional" ones, best moves, avoid moves, winning ones, drawing ones and such you don't know the outcome as for full or half points neither.

It all depends on the way of testing and judging, hash- learning to me should be a criterium once and again also.

But that's just my pov of course.
Peter.
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Dann Corbit
Posts: 12799
Joined: Wed Mar 08, 2006 8:57 pm
Location: Redmond, WA USA

Re: New test suite "Tactical Insanity"

Post by Dann Corbit »

Stockfish and all of its variants is able to manufacture very convincing fortresses when no fortress exists.
So I am testing the position with alternative engines.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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peter
Posts: 3419
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: New test suite "Tactical Insanity"

Post by peter »

Hi Dann!
Dann Corbit wrote: ↑Tue May 29, 2018 7:20 pm Stockfish and all of its variants is able to manufacture very convincing fortresses when no fortress exists.
There isn't any fortress.
Made a little .pgn interactively with CFish and full Syzygys. Evals at the ends of the lines as comments are from the engine having had some more Forward-Backward. Those should be reproducible with good hardware and enough hash at least to the positions commented.

[Event "Nr.131 No fortress."]
[Site "?"]
[Date "2018.05.29"]
[Round "?"]
[White "Corbit, Dann"]
[Black "Tactical, Insanity"]
[Result "1-0"]
[Annotator "CFish"]
[SetUp "1"]
[FEN "r5k1/R5p1/p4p1p/1p1b1P2/8/4B3/2B2K2/8 w - - 0 1"]
[PlyCount "19"]

1. Bb3 Bxb3 (1... Rd8 2. Ra8 Bxb3 3. Rxd8+ Kh7 4. Bd2 Bc2 5. Rd5 Be4 6. Rc5 Kg8
7. Bc3 Bh1 8. Ke3 Bb7 9. Bd2 Bg2 10. Rc8+ Kh7 11. Kf4 h5 12. Kg3 Bb7 13. Rc5
Kh8 14. Bc3 Be4 15. Bb4 {132.6/49 CFtbs}) 2. Rxa8+ Kh7 3. Rxa6 Bc2 4. Rb6 Bd3 (
4... b4 5. Rxb4 Bxf5 6. Rb5 Bh3 7. Kf3 Bc8 8. Bg1 Bh3 9. Ra5 Be6 10. Kf4 Kg6
11. Rb5 Kh7 12. Rb7 Bc4 13. Bd4 Kg8 14. Kf5 Bd5 15. Ra7 {132.6/61 CFtbs}) 5.
Kf3 Bxf5 6. Rxb5 Bd7 7. Rb8 Bc6+ 8. Kf4 Kg6 9. Rc8 Bd5 10. Rc7 {132.6/59 CFtbs}
1-0

Going backward that again with CFish ("Tactical" is only a branch of "Romeo23" with some code added for a special UCI- option, here it's switched off, so it's a normal CFish) at 24 threads, 32G hash and full Syzygys loaded:

r5k1/R5p1/p4p1p/1p1b1P2/8/4B3/2B2K2/8 w - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

1.Bb3 Bxb3 2.Rxa8+ Kh7 3.Rxa6 Bc2 4.Rb6 b4 5.Rxb4 Bxf5 6.Rb7 Be6 7.Kg3 Bc8 8.Ra7 Bf5 9.Kf4 Bc2 10.Rb7 h5 11.Bf2 Kg8 12.Ke3 Kf8 13.Kd4 Bd1 14.Ra7 Bg4 15.Kd5 Bf3+ 16.Kd6 Bg4 17.Rb7 Be2 18.Re7 Bg4 19.Be1 Kg8 20.Bb4 Bf5 21.Ra7 h4 22.Ke7 Be4 23.Ra3 Bg2 24.Bd6 h3 25.Rc3 Bf1 26.Rc8+ Kh7 27.Kf7 Be2 28.Rc7 Bd3 29.Bh2 Be4 30.Rd7 Bf5 31.Ra7 Be4 32.Ra3 Bd5+ 33.Kf8 Bg2
+- (132.42) Depth: 55/74 00:02:08 3809MN, tb=65216113

At the end of this one output- line it's #18.
Peter.
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BBauer
Posts: 658
Joined: Wed Mar 08, 2006 8:58 pm

Re: New test suite "Tactical Insanity"

Post by BBauer »

peter wrote: ↑Tue May 29, 2018 7:00 pm
Eelco de Groot wrote: ↑Tue May 29, 2018 6:06 pm
r5k1/R5p1/p4p1p/1p1b1P2/8/4B3/2B2K2/8 w - -

Engine: Kaissa III (512 MB)
by T. Romstad, M. Costalba, J. Kiiski, G.

...
Image
(4.681.820.821) 2854

35/44 56:14 +2.72 1.Bb3 Rd8 2.Bb6 Bxb3 3.Bxd8 Bc2
4.Be7 Bxf5 5.Rxa6 Kf7 6.Bb4 Be6
7.Rb6 Bc4 8.Rb7+ Kg8 9.Ke3 Bf1
10.Bd6 Bc4 11.Kd4 Bf1 12.Rc7 h5
13.Ke4 Bh3 14.Bc5 (9.008.460.022) 2669
But at this one Kaissa's output, Eelco, 2.Bb6 seems to be suboptimal.
After 1.Bb3 Rd8 2.Ra8 I get this one after some Forward- Backward:

R2r2k1/6p1/p4p1p/1p1b1P2/8/1B2B3/5K2/8 b - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

2...Bxb3 3.Rxd8+ Kh7 4.Bd2 Bc2 5.Rd5 Be4 6.Rc5 Bh1 7.Bb4 Kh8 8.Ke3 Kg8 9.Rc7 Bd5 10.Rc8+ Kh7 11.Rc5 Bg2 12.Rc7 Kg8 13.Rc8+ Kh7 14.Kf4 a5 15.Bxa5 Bd5 16.Kg3 Bc4 17.Rc5 Bf1 18.Rc6 Kg8 19.Bc3 Be2 20.Kf4 Kf7 21.Ra6 Bd3 22.Ra8 Ke7 23.Bb4+ Kd7 24.Ra7+ Kd8 25.Rxg7 h5 26.Bc3 Be2 27.Bxf6+ Kc8 28.Be5 b4 29.f6 Ba6 30.Rg8+ Kd7 31.f7
+- (14.42) Depth: 43/69 00:01:04 1927MN, tb=16763142

And after full Backward to the starting position, (having had some Forward after 1.Bb3 Bxb3 too):

r5k1/R5p1/p4p1p/1p1b1P2/8/4B3/2B2K2/8 w - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

1.Bb3 Bxb3 2.Rxa8+ Kh7 3.Rxa6 Bc2 4.Rb6 b4 5.Rxb4 Bxf5 6.Rb5 Bh3 7.Kf3 Bc8 8.Bg1 Bh3 9.Ra5 Be6 10.Kf4 Kg6 11.Rb5 Kh7 12.Rb7 Bc4 13.Bd4 Kg8 14.Kf5 Bd5 15.Ra7 Kf8 16.Rc7 Ba2 17.Ke4 Kg8 18.Ra7 Bb3 19.Bg1 Kf8 20.Bc5+ Kg8 21.Kf3 Bd5+ 22.Kf4 Bc6 23.Bb6 Be8 24.Kf5 Bf7 25.Ke4 Be6 26.Bg1 Bb3 27.Rc7 Be6 28.Be3 Ba2 29.Ra7 Bb3
+- (4.07) Depth: 51/71 00:08:42 17827MN, tb=93680431


There is progress in this output- line, at the end of it, there's this one:

6k1/R5p1/5p1p/8/4K3/1b2B3/8/8 w - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

30.Kd4 h5 31.Kc5 Bd1 32.Kd5 Bg4 33.Kd6 Kf8 34.Bc5 Bf5 35.Kc7+ Kf7 36.Kd8+ Ke6 37.Rxg7 Bg4 38.Rd7 f5 39.Rd6+ Ke5 40.Ke7 Bh3 41.Rd8 Bg4 42.Bb6 Bh3 43.Bc7+ Ke4 44.Kf6 Bg4 45.Bb6 h4 46.Rd4+ Kf3 47.Ke5 Ke2 48.Rd8 Ke1 49.Bc5 h3 50.Kf4 Bh5 51.Bg1 Bg4 52.Bh2 Kf1 53.Bg3 Kg2 54.Rd2+ Kf1 55.Kg5 Kg1 56.Rf2 Kh1 57.Bh2 Bf3 58.Kxf5 Bg2 59.Bg3 Bf1 60.Rxf1+ Kg2
+- (132.55) Depth: 51/64 00:07:31 14675MN, tb=224675243


Maybe there are chances for Black to build up a fortress yet, but I don't think so.

Interesting position anyhow.

About test postions generally speaking:
Problem to me is always only to collect positions of certain level of difficulty for automatic suites to judge by move "found or not found".

Judging eninges' outputs and evals otherwise can be done with certain solution- lines instead as well as with any position of interest.

Tactical ones, "positional" ones, best moves, avoid moves, winning ones, drawing ones and such you don't know the outcome as for full or half points neither.

It all depends on the way of testing and judging, hash- learning to me should be a criterium once and again also.

But that's just my pov of course.
With 30. ..h5 black destroys his fortress.
Better is 30. ..Be6. After this move I cannot see any progress.
Kind regards
Bernhard
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peter
Posts: 3419
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: New test suite "Tactical Insanity"

Post by peter »

BBauer wrote: ↑Tue May 29, 2018 8:14 pm With 30. ..h5 black destroys his fortress.
Better is 30. ..Be6. After this move I cannot see any progress.
Instead of hopping in at the end of output lines, try this, Bernhard:

http://talkchess.com/forum3/viewtopic.p ... 21#p763821

If you then still get from the starting position a drawing line only , let's discuss yours.
You should be able to reproduce mine with some Forward- Backward and at least should be able to get "Bingo- Evals" of hits of won tablebase positions at the given ends of the .pgn- lines.
Not to have to discuss positions after 30 moves, let's stick to the first 15 ones, after those everything should be clear with full Syzygys.
Peter.
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BBauer
Posts: 658
Joined: Wed Mar 08, 2006 8:58 pm

Re: New test suite "Tactical Insanity"

Post by BBauer »

peter wrote: ↑Tue May 29, 2018 8:26 pm
BBauer wrote: ↑Tue May 29, 2018 8:14 pm With 30. ..h5 black destroys his fortress.
Better is 30. ..Be6. After this move I cannot see any progress.
Instead of hopping in at the end of output lines, try this, Bernhard:

http://talkchess.com/forum3/viewtopic.p ... 21#p763821

If you then still get from the starting position a drawing line only , let's discuss yours.
You should be able to reproduce mine with some Forward- Backward and at least should be able to get "Bingo- Evals" of hits of won tablebase positions at the given ends of the .pgn- lines.
Not to have to discuss positions after 30 moves, let's stick to the first 15 ones, after those everything should be clear with full Syzygys.
I folowed your line up to the following position after 15. Ra7 {132.6/61 CFtbs}
6k1/R5p1/5p1p/3b1K2/3B4/8/8/8 b - - 19 15
Here sf gives
FEN: 6k1/R5p1/5p1p/3b1K2/3B4/8/8/8 b - - 19 15

Stockfish:


40/44 00:02 8.559k 3.201k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Kf5-f4 Bd5-e6 Bc5-d4 Be6-d5 Kf4-e3 Bd5-e6 Ke3-e4 Kg8-h8 Bd4-c5 Kh8-g8 Ke4-f4 h6-h5 Ra7-e7 Be6-g4 Kf4-e3 Bg4-d1 Re7-a7 Bd1-c2 Ke3-f3 Bc2-g6 Ra7-a8+ Kg8-f7 Ra8-f8+ Kf7-e6 Kf3-g3 Bg6-e4 Kg3-f4 Be4-c6 Bc5-d4 Bc6-a4 Rf8-h8 Ba4-d1 Rh8-a8 Ke6-f7 Ra8-a7+ Kf7-g8 Ra7-c7 Bd1-e2 Rc7-c8+ Kg8-f7 Bd4-c5
41/47 00:03 10.310k 3.235k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Kf5-f4 Bd5-e6 Bc5-d4 Be6-d5 Kf4-e3 Bd5-e6 Ke3-e4 Kg8-h8 Bd4-c5 Kh8-g8 Ke4-f4 h6-h5 Ra7-e7 Be6-g4 Kf4-e3 Bg4-d1 Re7-a7 Bd1-c2 Ke3-f3 Bc2-g6 Ra7-a8+ Kg8-f7 Ra8-f8+ Kf7-e6 Kf3-g3 Bg6-f5 Rf8-b8 Ke6-f7 Rb8-b7+ Kf7-g8 Kg3-h4 Bf5-g4 Rb7-e7 Kg8-h7 Kh4-g3 Kh7-g8 Re7-a7 Bg4-e2 Ra7-c7 Be2-g4 Rc7-b7
42/45 00:05 16.583k 3.247k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Kf5-f4 Bd5-e6 Bc5-d4 Be6-d5 Kf4-e3 Bd5-e6 Ke3-e4 Kg8-h8 Bd4-c5 Kh8-g8 Ke4-f4 h6-h5 Ra7-e7 Be6-g4 Kf4-e3 Bg4-d1 Re7-a7 Bd1-c2 Ke3-f3 Bc2-g6 Ra7-a8+ Kg8-f7 Ra8-f8+ Kf7-e6 Kf3-g3 Bg6-f5 Rf8-b8 Ke6-f7 Rb8-b7+ Kf7-g8 Kg3-h4 Bf5-g4 Rb7-e7 Kg8-h7 Kh4-g3 Kh7-g8 Re7-a7 Bg4-e2 Bc5-d4 Be2-g4 Bd4-c3 Bg4-e6
43/49 00:07 23.003k 3.237k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Kf5-f4 Bd5-e6 Bc5-d4 Be6-d5 Kf4-e3 Bd5-e6 Ke3-e4 Kg8-h8 Bd4-c5 Kh8-g8 Ke4-f4 h6-h5 Ra7-e7 Be6-g4 Kf4-e3 Bg4-d1 Re7-a7 Bd1-c2 Ke3-f3 Bc2-g6 Ra7-a8+ Kg8-f7 Ra8-f8+ Kf7-e6 Kf3-g3 Bg6-f5 Rf8-b8 Ke6-f7 Rb8-b7+ Kf7-g8 Kg3-h4 Bf5-g4 Rb7-e7 Kg8-h7 Kh4-g3 Kh7-g8 Re7-a7 Bg4-e2 Kg3-h4 Be2-f3 Bc5-d4 Bf3-g4 Kh4-g3 Bg4-e2 Ra7-a8+ Kg8-f7
44/47 00:13 40.816k 3.133k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Kf5-f4 Bd5-e6 Bc5-d4 Be6-d5 Kf4-e3 Bd5-e6 Ke3-e4 Kg8-h8 Bd4-c5 Kh8-g8 Ra7-c7 h6-h5 Rc7-e7 Be6-g4 Ke4-d5 h5-h4 Kd5-e4 Bg4-h3 Ke4-f4 Bh3-g2 Kf4-f5 Kg8-h7 Bc5-d4 h4-h3 Bd4-g1 Bg2-f3 Re7-a7 Bf3-g2 Ra7-c7 Bg2-d5 Kf5-g4 Bd5-e6+ Kg4-g3 Be6-f5 Rc7-e7 Kh7-g8 Re7-a7 Bf5-e6 Ra7-b7 Be6-f5 Bg1-d4 Bf5-e6 Rb7-b8+ Kg8-f7
45/53 00:14 46.264k 3.127k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Rd7-a7 Bf1-h3+ Kf5-e4 Kh7-g8 Ke4-d5 Bh3-g4 Bc5-f2 Kg8-f8 Bf2-g3 Bg4-f3+ Kd5-d4 Kf8-g8 Bg3-d6 h6-h5 Kd4-e3 Bf3-d1 Ke3-e4 Bd1-g4 Ke4-f4 Bg4-e6 Ra7-a8+ Kg8-h7 Kf4-e4 h5-h4 Ra8-a7 Kh7-g8 Ke4-f4 Be6-h3 Kf4-e3 Bh3-e6 Bd6-e7
46/55 00:17 53.904k 3.050k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Rd7-a7 Bf1-h3+ Kf5-e4 Kh7-g8 Ke4-d5 Bh3-g4 Bc5-d4 h6-h5 Ra7-a8+ Kg8-f7 Kd5-e4 Bg4-e6 Bd4-c5 Be6-d7 Ra8-f8+ Kf7-g6 Ke4-f4 h5-h4 Bc5-d4 Bd7-e6 Rf8-a8 Kg6-f7 Ra8-a7+ Kf7-f8 Bd4-c5+ Kf8-g8 Ra7-e7 Be6-h3 Kf4-e4 Kg8-h7 Re7-a7 Kh7-g8 Bc5-d6 Bh3-e6
47/50 00:26 81.360k 3.019k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Rd7-a7 Bf1-h3+ Kf5-e4 Kh7-g8 Ke4-d5 Bh3-g4 Bc5-d4 h6-h5 Ra7-a8+ Kg8-f7 Kd5-e4 Bg4-e6 Bd4-c5 Be6-d7 Ra8-f8+ Kf7-g6 Ke4-f4 h5-h4 Bc5-d4 Bd7-e6 Rf8-a8 Kg6-f7 Ra8-a7+ Kf7-f8 Bd4-c5+ Kf8-g8 Ra7-e7 Be6-h3 Bc5-b4 Bh3-f1 Re7-a7 Bf1-g2
48/56 00:33 98.043k 2.889k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Rd7-a7 Bf1-h3+ Kf5-e4 Kh7-g8 Ke4-d5 Bh3-g4 Bc5-d4 h6-h5 Ra7-a8+ Kg8-f7 Kd5-e4 Bg4-e6 Bd4-c5 Be6-d7 Ra8-f8+ Kf7-g6 Ke4-f4 h5-h4 Bc5-d4 h4-h3 Rf8-h8 Kg6-f7 Bd4-c3 g7-g5+ Kf4-g3 Kf7-g7 Rh8-d8 Bd7-e6 Rd8-b8 g5-g4 Bc3-d4 Kg7-f7 Rb8-b7+ Kf7-g6 Rb7-a7
49/55 00:50 141.256k 2.790k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Rd7-a7 Bf1-h3+ Kf5-e4 Kh7-g8 Ke4-d5 Bh3-g4 Bc5-d4 h6-h5 Ra7-a8+ Kg8-f7 Kd5-e4 Bg4-e6 Bd4-c5 Be6-d7 Ra8-f8+ Kf7-g6 Ke4-f4 h5-h4 Bc5-d4 h4-h3 Rf8-h8 Kg6-f7 Bd4-c3 g7-g5+ Kf4-g3 Kf7-g7 Rh8-d8 Bd7-e6 Rd8-d6 Kg7-f7 Bc3-d4 f6-f5 Kg3xh3 f5-f4+ Kh3-g2 Kf7-e7 Rd6-b6
50/59 01:00 167.898k 2.790k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Kf5-f4 Bf1-h3 Rd7-a7 Kh7-g8 Bc5-d4 Bh3-g2 Kf4-e3 Kg8-f8 Bd4-c5+ Kf8-g8 Ke3-d4 Bg2-f3 Bc5-b4 h6-h5 Kd4-e3 Bf3-g4 Ra7-b7 Bg4-e6 Rb7-b8+ Kg8-h7 Bb4-f8 Kh7-g8 Bf8-a3+ Kg8-f7 Rb8-b7+ Kf7-g8 Rb7-a7 h5-h4 Ba3-e7 Be6-f5 Ra7-c7 Bf5-e6 Ke3-f3 Be6-f5 Be7-c5 h4-h3 Kf3-g3 h3-h2
51/59 01:14 206.727k 2.784k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Kf5-f4 Bf1-h3 Rd7-a7 Kh7-g8 Bc5-d4 Bh3-g2 Kf4-e3 Kg8-f8 Bd4-c5+ Kf8-g8 Ke3-d4 Bg2-f3 Bc5-b4 h6-h5 Kd4-e3 Bf3-g4 Ra7-b7 Bg4-e6 Rb7-b8+ Kg8-h7 Bb4-f8 Kh7-g8 Bf8-a3+ Kg8-f7 Rb8-b7+ Kf7-g8 Rb7-a7 h5-h4 Ba3-e7 Be6-f5 Ra7-c7 Bf5-g6 Ke3-f2 Bg6-h7 Be7-c5 Bh7-d3 Rc7-e7 Bd3-f5 Bc5-d4 Kg8-f8
52/63 01:36 266.679k 2.749k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Kf5-f4 Bf1-h3 Rd7-a7 Kh7-g8 Kf4-e4 Bh3-e6 Bc5-d6 h6-h5 Bd6-c5 Be6-g4 Ra7-a8+ Kg8-h7 Ra8-a4 Kh7-g8 Ke4-f4 g7-g5+ Kf4-g3 Bg4-e6 Bc5-e7 h5-h4+ Kg3-h2 Kg8-f7 Be7-d8 Kf7-g6 Ra4-a6 Kg6-f7 Kh2-g2 Be6-d5+ Kg2-f2 Bd5-e6 Ra6-d6 g5-g4 Kf2-g2 h4-h3+ Kg2-h2 f6-f5 Bd8-g5 Be6-c8 Rd6-h6 Bc8-d7 Rh6-b6 Bd7-c8 Kh2-g3 Bc8-d7 Rb6-f6+ Kf7-e8 Kg3-h2

So the score is -3.04 and I cannot see your 15. Ra7 {132.6/61 CFtbs}
Sorry.
Could you give a winning line?
Kind regards
Bernhard

PS: In the line I metioned 11. ..Kh7 is a blunder. 11. ..Kf7 holds the draw. As mentioned before, do not push pawns for obvious reasons.
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peter
Posts: 3419
Joined: Sat Feb 16, 2008 7:38 am
Full name: Peter Martan

Re: New test suite "Tactical Insanity"

Post by peter »

BBauer wrote: ↑Tue May 29, 2018 10:37 pm
I folowed your line up to the following position after 15. Ra7 {132.6/61 CFtbs}
6k1/R5p1/5p1p/3b1K2/3B4/8/8/8 b - - 19 15
Here sf gives
FEN: 6k1/R5p1/5p1p/3b1K2/3B4/8/8/8 b - - 19 15

St-orig-18-05-17:
...
52/63 01:36 266.679k 2.749k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Kf5-f4 Bf1-h3 Rd7-a7 Kh7-g8 Kf4-e4 Bh3-e6 Bc5-d6 h6-h5 Bd6-c5 Be6-g4 Ra7-a8+ Kg8-h7 Ra8-a4 Kh7-g8 Ke4-f4 g7-g5+ Kf4-g3 Bg4-e6 Bc5-e7 h5-h4+ Kg3-h2 Kg8-f7 Be7-d8 Kf7-g6 Ra4-a6 Kg6-f7 Kh2-g2 Be6-d5+ Kg2-f2 Bd5-e6 Ra6-d6 g5-g4 Kf2-g2 h4-h3+ Kg2-h2 f6-f5 Bd8-g5 Be6-c8 Rd6-h6 Bc8-d7 Rh6-b6 Bd7-c8 Kh2-g3 Bc8-d7 Rb6-f6+ Kf7-e8 Kg3-h2

So the score is -3.04 and I cannot see your 15. Ra7 {132.6/61 CFtbs}
Sorry.
Could you give a winning line?
Instead of your (output's) 15...Bc4 16.Bc5 Bd5 17.Re7 (which might work still but is the earliest deviation and I hope to get you a shortest line you can reproduce) 17.Rc7.

So

r5k1/R5p1/p4p1p/1p1b1P2/8/4B3/2B2K2/8 w - - 0 1

1. Bb3 Bxb3 2. Rxa8+ Kh7 3. Rxa6 Bc2 4. Rb6 b4 5. Rxb4 Bxf5 6. Rb5 Bh3 7. Kf3
Bc8 8. Bg1 Bh3 9. Ra5 Be6 10. Kf4 Kg6 11. Rb5 Kh7 12. Rb7 Bc4 13. Bd4 Kg8 14.
Kf5 Bd5 15. Ra7 Bc4 16. Bc5 Bd5

and then

6k1/R5p1/5p1p/2Bb1K2/8/8/8/8 w - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

17.Rc7 Bb3 18.Rc8+ Kh7 19.Bf8 Bf7 20.Ra8 h5 21.Ra7 Kg8 22.Ba3 Bb3 23.Kg6 Bc2+ 24.Kxh5 Bf5 25.Kh4 Be6 26.Kg3 Bd5 27.Kf4 Bg2 28.Ke3 Bf1 29.Kd4 Bg2 30.Kc5 Kf8 31.Kd6 Bh3 32.Kc7+ Kg8 33.Kd8 Bg2 34.Ke7 Bh1 35.Bb2 Bf3 36.Ra3 Bg4 37.Ra8+ Kh7 38.Kf8 Be6 39.Ra7 Kg6 40.Rxg7+ Kf5 41.Ke7 Bc4 42.Bxf6 Kf4
+- (132.60) Depth: 59/58 00:00:06 202MN, tb=4090739

At move 24 of this output- line you have already a won 7some position.

Without full Syzygys you'll have to have some more tries probably, but let's just see, maybe you'll get some mating score even without tbs sooner or later. The Lomonosov- position after 24.Kxh5 anyhow is #37 only:

6k1/R5p1/5p2/7K/8/B7/2b5/8 b - -

1...Bd1+ 2.Kh4 Bc2 3.Kg4 Bd1+ 4.Kf4 Bc2 5.Ke3 Bd1 6.Kd4 Bc2 7.Kd5 Bb3+ 8.Kd6
Kf8 9.Kd7+ Kf7 10.Kd8+ Kg6 11.Bb2 Bc2 12.Ke8 Kf5 13.Rxg7 Ke6 14.Re7+ Kd6 15.
Bxf6 Bb3 16.Re5 Bc2 17.Ra5 Bd1 18.Bg5 Bh5+ 19.Kd8 Bf7 20.Bf4+ Ke6 21.Re5+ Kf6
22.Kd7 Bg6 23.Kd6 Bf5 24.Be3 Bg4 25.Bd4 Bf5 26.Re1+ Kg6 27.Rg1+ Kh5 28.Ke5 Bg4
29.Kf4 Be6 30.Rg5+ Kh6 31.Bg7+ Kh7 32.Ke5 Bd7 33.Rg3 Bh3 34.Kf6 Bg4 35.Rxg4
Kg8 36.Bf8+ Kxf8 37.Ke6 Ke8 38.Rg8#

Kind regards,

P.S. I see you edited you posting in the meantime
<
PS: In the line I metioned 11. ..Kh7 is a blunder. 11. ..Kf7 holds the draw.
>

Nope, Bernhard, after 11...Kf7 instead of ...Kh7:

8/5kp1/4bp1p/1R6/5K2/8/8/6B1 w - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

12.Rb7+ Kf8 13.Bc5+ Kg8 14.Ke4 Bh3 15.Ra7 Be6 16.Bd6 h5 17.Bc5 h4 18.Kf4 h3 19.Kg3 Bf5 20.Re7 Kh7 21.Bg1 Kg8 22.Kf4 Bc2 23.Kg4 Kf8 24.Ra7 Be4 25.Kxh3 Bd5 26.Bc5+ Kg8 27.Rc7 Bc4 28.Kg4 Bd3 29.Ba3 Be4 30.Kf4 Bd3 31.Ke3 Bf5 32.Kd4 Be6 33.Ra7 Bb3 34.Kc5 Ba2 35.Kd6 Kf8 36.Rc7 Bb3 37.Kd7+ Kf7 38.Kd8+ Kg8 39.Ke7 Bd5 40.Rc8+ Kh7 41.Kf8
+- (132.50) Depth: 53/72 00:01:15 2405MN, tb=27576703

BTW you saw the output with 132.6- eval at the starting position, did you?

And you don't start pondering if your SF at your hardware simply is missing the full Syzygys to make you see you're wrong by yourself, don't you? And or some more hash maybe too?
And or some more patience of yours at going the lines forth and back?
:)
Peter.
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Paloma
Posts: 1210
Joined: Thu Dec 25, 2008 9:07 pm
Full name: Herbert L

Re: New test suite "Tactical Insanity"

Post by Paloma »

Thank you Peter for your quality posting (as allways)
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User avatar
MikeB
Posts: 4889
Joined: Thu Mar 09, 2006 6:34 am
Location: Pen Argyl, Pennsylvania

Re: New test suite "Tactical Insanity"

Post by MikeB »

BBauer wrote: ↑Tue May 29, 2018 6:58 pm
Eelco de Groot wrote: ↑Tue May 29, 2018 6:35 pm Sure Bernard, but Dann can't be faulted for not seeing the fortress. I just rely on the output from Stockfish and if Stockfish can't find more than this with a full rook even after checking the end of the PV, no progress at all, I just tend to believe there is nothing more. But the score is still high and if a program does not correct for the opposite color bishops than it can easily be higher still.
I don´t blame Dan for not seeing the fortress, but for not seeing a NON-rising score beyoned a certain level.
And I blame Dan for a short pv.
This position does´t belong in a test-suite.
Kind regards
Bernhard
Bernhard,

There has been nothing kind in your posts at all on this thread. But that is not surprising,

McBrain 9.2, with a clean start, does eventually move off the so called "fortress" score after about 32 minutes.

Peter's analysis , as is typical , is right on.

Code: Select all

dep	score	nodes	time	(not shown:  tbhits	knps	seldep)
 62	+4.88!	206.6G	2:03:20	Bb3! 
 62	+4.53!	190.5G	1:54:14	Bb3! 
 62	+4.19!	172.4G	1:43:53	Bb3! 
 62	+3.84!	126.9G	1:16:58	Bb3! 
 62	+3.50!	94.0G	57:30.45	Bb3! 
 61	+3.15!	53.1G	32:47.48	Bb3! 
 60	+2.83 	49.3G	30:15.67	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Be4 Kf4 Bd3 Rd6 Bg6 Rd7 Kg8 Bc5 Bh7 Rd8+ Kf7 Rf8+ Ke6 Re8+ Kf7 Re7+ Kg8 Rd7 Bg6 Ra7 Bc2 Kf3 Bd3 Ke3 Bg6 Kd4 Bf5 Bd6 Be6 Rb7 Bh3 Bc5 Be6 Rb8+ Kh7 Rb6 Bg4 Bd6 Bf3  
 59	+2.83 	33.1G	20:17.69	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Bc4 Kf4 Bd3 Rd6 Bg6 Rd7 Kg8 Bc5 Bh7 Rd8+ Kf7 Rf8+ Ke6 Re8+ Kf7 Re7+ Kg8 Rd7 Bg6 Ra7 Bd3 Ke3 Bg6 Kd4 Bh7 Bd6 Bg6 Rb7 Bc2 Kd5 Bf5 Ra7 Bg4 Bc5 Bf5 Bd4 Kf8 Rb7 Kg8 R 
 58	+2.83 	27.8G	17:07.33	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Rb8 Bc6 Rc8 Bd5 Rc7+ Kg8 Be3 Kf8 Bc5+ Kg8 Ra7 Be6 Be3 Kh7 Kf3 Kg8 Re7 Bd5+ Kf4 Kh7 Bd4 Kg8 Kf5 Bc4 Ke4 Kf8 Ra7 Be6 Bc5+ Kg8 Kd4 Bb3 Bb4 Be6 R 
 57	+2.83 	20.1G	12:22.78	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Rb8 Bc6 Rc8 Bd5 Rc7+ Kg8 Be3 Kf8 Bc5+ Kg8 Ra7 Be6 Rb7 Bd5 Rb6 Kf7 Ra6 Be6 Kf4 Bd5 Ra7+ Kg8 Kf5 Bb3 Bd6 Bd5 Rc7 Bf7 Bb4 Bd5 Rd7 Ba2 Ke4 Be6 Ra 
 56	+2.83 	17.5G	10:46.14	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Ra6 Bd3 Ra7+ Kg8 Kf4 Bc4 Ke4 Be6 Bc5 Bc4 Kd4 Be6 Bd6 Bh3 Rc7 Be6 Rb7 Bf5 Kd5 Bh3 Rb6 Kf7 Kd4 Bg2 Ra6 Bf3 Ra7+ Kg8 Rc7 Bg4 Kd5 Bf5 Ra7 Bg4 Bb4 
 55	+2.83 	13.7G	8:26.87	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Ra6 Bd3 Ra7+ Kg8 Kf3 Bf5 Rb7 Bd3 Ke3 Bf5 Rc7 Be6 Ra7 Bd5 Bc5 Bg2 Bd6 Bc6 Bb4 Bd5 Kd4 Bf3 Bc5 Bc6 Rc7 Bf3 Bd6 Bg2 Rc2 Bh3 Kd5 Kf7 Rc7+ Kg8 Bc5  
 54	+2.83 	10.9G	6:42.53	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Ra6 Bd3 Ra7+ Kg8 Kf3 Bf5 Re7 Bg6 Ke3 Bf7 Kf4 Bd5 Kf5 Kf8 Rc7 Kg8 Bc3 Bf7 Rd7 Bb3 Bd4 Bc4 Ra7 Bd5 Kg6 Be4+ Kh5 Bf5 Bc5 Be4 Kg4 Bd3 Rd7 Bb5 Rd8+ 
 53	+2.83 	8.47G	5:13.69	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Ra6 Bd3 Ra7+ Kg8 Kf3 Bc4 Rc7 Bd3 Ke3 Bg6 Rb7 Be8 Rb8 Kf7 Ra8 Bc6 Ra7+ Kg8 Bc5 Bg2 Bb4 Bd5 Kf4 Be6 Bd6 Bd5 Kf5 Bc4 Rd7 Bd3+ Ke6 Bf1 Rc7 Bh3+ Kd 
 52	+2.83 	7.65G	4:43.00	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Ra6 Bd3 Ra7+ Kg8 Kf3 Bg6 Bc5 Bd3 Rc7 Bf5 Kf4 Be6 Bd4 Kf8 Kg3 Kg8 Be3 Bd5 Bc5 Be6 Kf4 Bd5 Kf5 Bf7 Be3 Bd5 Rd7 Bg2 Re7 Bf1 Rc7 Bg2 Bc5 Bd5 Bd6 
 51	+2.83 	6.62G	4:05.13	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Ra6 Bd3 Ra7+ Kg8 Bc5 Be4 Kf4 Bd5 Kf5 Bc4 Be3 Kh7 Rc7 Bd5 Rd7 Bc4 Bc5 Bf1 Rc7 Bh3+ Ke4 Bg2+ Ke3 Kg8 Ra7 Bd5 Kd4 Bf3 Rc7 Bg2 Bb4 Bf3 Bd6 Bg4 
 50	+2.83 	5.65G	3:29.90	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Ra6 Bd3 Ra7+ Kg8 Be3 Kf8 Bc5+ Kg8 Kg4 Be4 Kf4 Bd5 Kf5 Bc4 Rc7 Bf1 Ke6 Bh3+ Kd5 Bg2+ Kd4 Bf3 Bd6 Bg4 Bb4 Bf3 Bc5 Bg2 Bd6 Bf3 Ra7 Be2 Bb4 Bg4 
 49	+2.83 	4.89G	3:01.89	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Kf4 Bd5 Rb5 Bg2 Ra5 Kg8 Ra7 Bd5 Kf5 Bc4 Rc7 Bd5 Rd7 Bc6 Re7 Bb5 Rc7 Be2 Rd7 Bb5 Rd8+ Kh7 Bc5 Ba4 Rd6 Bc2+ Kg4 Kg6 Kf4 Kf7 Rd7+ Kg8 Ra7 Bd3 
 48	+2.83 	3.87G	2:24.23	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Kf4 Bd5 Bc5 Be6 Rb7+ Kg8 Ra7 Bc4 Ke4 Be6 Kd4 Bg4 Bd6 Bf3 Rc7 Bg4 Rb7 Bf3 Ra7 Bg4 Ke4 Be6 Ke3 Bc4 Kd4 Be6 Rb7 Bf5 Rb6 Kf7 Rb5 Be6 Rb7+ Kg8 
 47	+2.83 	2.89G	1:48.15	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Kf4 Bd5 Bc5 Be6 Rb7+ Kg8 Ra7 Bd5 Kf5 Bc4 Ke4 Be6 Ke3 Bc4 Kd4 Be6 Bd6 Bf5 Rc7 Bg6 Ke3 Bf5 Rb7 Bg4 Kf4 Be6 Rc7 Bd5 Kf5 Bf7 Bc5 Bd5 
 46	+2.83 	2.22G	1:23.17	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Kf4 Bd5 Bc5 Be6 Rb7+ Kg8 Ra7 Bd5 Kf5 Bc4 Ke4 Be6 Be3 Kh7 Rc7 Kg8 Bd4 Kf8 Bc5+ Kg8 Ra7 Bc4 Rb7 Be6 Kd4 Bf5 Rb5 Bg6 Rb8+ Kh7 Rb7 Kg8 
 45	+2.83 	2.08G	1:18.16	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Kf4 Bd5 Rb8 Ke6 Kg4 Kf7 Kh4 Be4 Bc5 Kg6 Rb6 Kh7 Ra6 Bd3 Ra7 Kg8 Kg4 Be4 Bd4 Bc2 Kf3 Bd3 Kf4 Bg6 Bc5 Bd3 Rb7 Bc4 Ke4 
 44	+2.83 	1.70G	1:04.30	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Kf4 Bd5 Rb8 Ke6 Kg3 Kf7 Rb5 Be4 Ra5 Kg8 Kf4 Bg2 Ra7 Bd5 Kf5 Bc4 Rc7 Bd5 Re7 Bc4 Ra7 Bd3+ Kf4 Bg6 Ke3 Bf7 Rc7 Be6 
 43	+2.83 	1.44G	0:54.49	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kg3 Be4 Kf4 Bd5 Ra6 Kg8 Kf5 Kh7 Rd6 Bc4 Rd7 Bb5 Rc7 Kg8 Ke4 Be8 Ra7 Bg6+ Ke3 Bf5 Re7 Bc2 Kf4 Bd3 Ra7 Bc2 Bc5 
 42	+2.83 	1.32G	0:50.21	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kf4 Kg8 Bc5 Kf7 Ra6 Be6 Ra7+ Kg8 Rb7 Bc4 Kg3 Bd5 Ra7 Be4 Kf4 Bg6 Rb7 Bd3 Bd4 Bg6 Rb8+ Kh7 Rb6 Bd3 Rb7 Kg8 Ke3 Bc4 Ke4 Be6 
 41	+2.83 	1.07G	0:40.84	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kf4 Kg8 Bc5 Kf7 Ra6 Be6 Ra7+ Kg8 Ke4 Bc4 Bd4 Kf8 Kf5 Bd3+ Kf4 Kg8 Ke3 Bg6 Kf3 Bd3 Kf4 Bg6 Rb7 Bd3 Bc5 Be2 Ke3 Bc4 
 40	+2.83 	963.7M	0:37.05	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kf4 Kg8 Bc5 Kf7 Ra6 Be6 Ra7+ Kg8 Rb7 Bc4 Ke4 Be6 Bd4 Kf8 Ra7 Bc4 Kf5 Bd3+ Kg4 Kg8 Kf4 Bg6 Ra6 Kf7 Rb6 Kg8 Rb8+ Kh7 
 39	+2.83 	875.8M	0:33.76	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kf4 Kg8 Bc5 Kf7 Ra6 Be6 Ra7+ Kg8 Rb7 Bc4 Ke4 Be6 Rc7 Bc4 Bd4 Be6 Kf4 Kf8 Bc5+ Kg8 Be3 Bd5 Kf5 Kh7 Rd7 Bc4 Rd6 Bb5 
 38	+2.83 	818.3M	0:31.63	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kf4 Kg8 Bc5 Kf7 Ra6 Be6 Ra7+ Kg8 Rb7 Bc4 Ke4 Be6 Bd4 Kf8 Be3 Bc4 Ra7 Kg8 Re7 Be2 Bc5 Bc4 Bd4 Kf8 Ra7 
 37	+2.83 	742.1M	0:28.79	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Kg3 Bd5 Kg4 Kg6 Bd4 Kf7 Kf4 Kg8 Bc5 Kf7 Ra6 Be6 Ra7+ Kg8 Rb7 Bc4 Ke4 Be6 Bd4 Bf7 Kf4 Be6 Rc7 Kf8 Bc5+ Kg8 Be3 Bd5 Kf5 Kh7 Rd7 
 36	+2.83 	718.5M	0:27.92	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Bd4 Bd5 Kg3 Kg8 Rb5 Be4 Rb8+ Kh7 Rb6 Kg8 Kf4 Bd3 Rb7 Bg6 Rb8+ Kh7 Bc5 Bd3 Rb7 Kg8 Rd7 Bb5 Ra7 Bc4 Ke4 Be2 Ke3 Bg4 
 35	+2.83 	658.5M	0:25.67	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Bc5 Bf5 Rb7 Kg8 Kf3 Bd3 Kf4 Bc4 Ra7 Be6 Kg3 Bd5 Kg4 Bc4 Bd4 Be6+ Kh4 Bc4 Kg3 Bd5 Rc7 Be6 Be3 Bf5 Ra7 Bd3 
 34	+2.83 	609.8M	0:23.88	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 Bc2 Rb6 Bxf5 Rxb5 Bd3 Rb6 Be4 Bc5 Bf5 Kg3 Be4 Kf4 Bd3 Ke3 Bf5 Rb7 Kg8 Bd4 Be6 Re7 Bc4 Rc7 Bd5 Kf4 Be6 Ra7 Bc4 Rd7 h5 Ra7 Be6 Kg3 Bd5 
 34	+2.79!	488.2M	0:19.36	Bb3! 
 34	+2.53!	473.2M	0:18.79	Bb3! 
 33	+2.27 	384.7M	0:15.27	Bb3 Rd8 Ra8 Bxb3 Rxd8+ Kh7 Bc5 Bc2 Ra8 Bxf5 Rxa6 h5 Kg3 Be4 Rb6 Bd3 Rb7 Kg8 Kh4 Be2 Bd4 Kf8 Kh3 Kg8 Kg3 Bc4 Kh4 Be2 Bc3 Kf8 Bb4+ Kg8 Ra7 Bf3 Re7 Kh8 Rd7 Be2 Bc3 Kg8 
 33	+2.40!	317.0M	0:12.58	Bb3! 
 33	+2.32!	299.2M	0:11.86	Bb3! 
 33	+2.25!	285.2M	0:11.29	Bb3! 
 33	+2.17!	279.4M	0:11.07	Bb3! 
 33	+2.10!	277.6M	0:11.00	Bb3! 
 33	+2.02!	275.9M	0:10.93	Bb3! 
 33	+1.95!	274.8M	0:10.89	Bb3! 
 33	+1.87!	274.2M	0:10.86	Bb3! 
 33	+1.80!	272.7M	0:10.80	Bb3! 
 33	+1.72!	271.2M	0:10.74	Bb3! 
 33	+1.65!	270.3M	0:10.70	Bb3! 
 33	+1.57!	269.3M	0:10.67	Bb3! 
 33	+1.50!	268.5M	0:10.63	Bb3! 
 33	+1.42!	268.1M	0:10.62	Bb3! 
 33	+1.35!	267.6M	0:10.60	Bb3! 
 33	+1.27!	267.4M	0:10.59	Bb3! 
 33	+1.20!	266.8M	0:10.56	Bb3! 
 33	+1.12!	266.5M	0:10.55	Bb3! 
 33	+1.05!	266.0M	0:10.53	Bb3! 
 33	+0.97!	265.6M	0:10.51	Bb3! 
 33	+0.89!	265.4M	0:10.51	Bb3! 
 33	+0.81!	265.0M	0:10.49	Bb3! 
 33	+0.73!	264.8M	0:10.48	Bb3! 
 33	+0.66!	263.8M	0:10.44	Bb3! 
 33	+0.25!	263.7M	0:10.44	Bb3! 
 33	+0.17!	263.3M	0:10.42	Bb3! 
 33	+0.08!	263.1M	0:10.41	Bb3! 
 32	  0.00 	231.8M	0:09.14	Rxa8+ Bxa8 Bd2 Kh7 Kg3 Bd5 Kh4 Bf7 Be4 g5+ fxg6+ Bxg6 Bb7 Bd3 Bxa6 f5 Bc8 Kg6 Bd7 f4 Bxf4 b4 Bc1 h5 Bc6 Kf6 Kxh5 
 31	  0.00 	143.6M	0:05.72	Rxa8+ Bxa8 Bd2 Bd5 Be1 Kh7 Kg3 Bf7 Be4 Be8 Bd2 g5 fxg6+ Bxg6 Bb7 h5 Bxa6 h4+ Kg4 b4 Kxh4 b3 Bc3 b2 Bxb2 
 30	  0.00 	107.5M	0:04.33	Rxa8+ Bxa8 Bd2 Kh7 Kg3 Bd5 Kh4 Bf7 Be4 g5+ fxg6+ Bxg6 Bb7 Bd3 Bxa6 f5 Bc8 Kg6 Bd7 f4 Bxf4 b4 Bc1 h5 Bc6 Kf6 Kxh5 
 29	  0.00 	89.8M  	0:03.65	Rxa8+ Bxa8 Bd2 Kh7 Kg3 Bd5 Kh4 Bf7 Be4 g5+ fxg6+ Bxg6 Bb7 Bd3 Bxa6 f5 Bc8 Kg6 Bd7 f4 Bxf4 b4 Bc1 h5 Bc6 Kf6 Kxh5 
 28	  0.00 	81.5M  	0:03.34	Rxa8+ Bxa8 Bd2 Bd5 Kg3 Kh7 Kh4 Bf7 Be4 g5+ fxg6+ Bxg6 Bb7 Bd3 Bxa6 f5 Bc8 Kg6 Bd7 f4 Bxf4 b4 Bc1 h5 Bc6 Kf6 Kxh5 
 27	+0.02 	60.3M  	0:02.51	Rxa8+ Bxa8 Bd2 Bd5 Be1 Kh7 Kg3 Bf7 Be4 g6 Bb7 gxf5 Bxa6 Bc4 Bc8 Kg6 Bb4 h5 Bd7 Kg5 Bd2+ Kg6 Be8+ Kg7 Bb4 f4+ Kxf4 h4 Bd7 Kf7 Bc6 Ke6 
 26	+0.08 	26.5M  	0:01.13	Rxa8+ Bxa8 Bd2 Bd5 Be1 Kh7 Kg3 Bc6 Bb4 Bd5 Bd3 Bc6 Kg4 Bd5 Bc3 Bc6 Kh4 Kg8 Kg3 Kh7 Kg4 Bd5 Bb4 Kg8 Kf4 Kf7 Be1 Ke8 
 25	+0.08 	19.5M  	0:00.83	Rxa8+ Bxa8 Bd2 Bd5 Be1 Kh7 Kg3 Bc6 Bb4 Bd5 Bd3 Bc6 Bc3 Bd5 Kg4 Bc6 Kh4 Kg8 Kg3 Kh7 Bb4 Bd5 Kh4 Bf7 Be4 g5+ fxg6+ Bxg6 Bb7 
 24	+0.08 	15.0M  	0:00.64	Rxa8+ Bxa8 Bd2 Bd5 Kg3 Kh7 Kh4 Bc6 Bb4 Kh8 Kg4 Kh7 Bd3 Be8 Be4 g6 fxg6+ Bxg6 Bb7 Be8 Bxa6 Bd7+ Kg3 Kg6 Bf8 h5 Kh2 Bc6 
 23	+0.08 	9.72M  	0:00.41	Rxa8+ Bxa8 Bd2 Bd5 Kg3 Kh7 Kh4 Bc6 Bb4 Kh8 Kg4 Kh7 Bd3 Be8 Be4 g6 fxg6+ Bxg6 Bb7 Be8 Bxa6 Bd7+ Kg3 Kg6 Bf8 h5 Kh2 
 22	+0.08 	8.50M  	0:00.36	Rxa8+ Bxa8 Bd2 Bd5 Kg3 Kh7 Kh4 Bc6 Bb4 Kh8 Kg4 Kh7 Bd3 Be8 Be4 g6 fxg6+ Bxg6 Bb7 Be8 Bxa6 Bd7+ Kg3 Kg6 Bf8 
 21	+0.08 	5.71M  	0:00.24	Rxa8+ Bxa8 Bd2 Kh7 Kg3 Bb7 Kh4 Bd5 Bb4 Bc6 Bd3 Bd5 Kg3 Bc6 Bc3 Bd5 Ba5 Bc6 Bb4 Bd5 Kf4 Bc6 Be1 
 20	+0.08 	4.84M  	0:00.21	Rxa8+ Bxa8 Bd2 Kh7 Kg3 Bb7 Kh4 Bd5 Bb4 Bc6 Bd3 Bd5 Kg3 Bc6 Bc3 Bd5 Ba5 Kg8 Bb4 Kh7 Kh4 Bc6 
 19	+0.08 	4.31M  	0:00.18	Rxa8+ Bxa8 Bd2 Kh7 Kg3 Bc6 Bc3 Bd5 Be1 Bc6 Kh4 Kg8 Bb4 Kh7 Bd3 Bd5 Kg3 Bc6 Bc3 Bd5 Kg4 
 18	+0.07 	3.69M  	0:00.16	Rxa8+ Bxa8 Bd2 Kh7 Kg3 Bc6 Bc3 h5 Kh4 Be8 Be4 g5+ fxg6+ Bxg6 Bb7 Be8 Bxf6 Kg6 Bd8 Kg7 Bf3 a5 Bxa5 
 17	+0.08 	3.05M  	0:00.13	Rxa8+ Bxa8 Bd2 Bd5 Kg3 Kh7 Kh4 Bc6 Bb4 Bd5 Bd3 Bc6 Bb1 Be8 Be4 h5 Bb7 Bd7 Bxa6 
 16	+0.08 	2.04M  	0:00.09	Rxa8+ Bxa8 Bd2 Bd5 Ke3 Kh7 Kf4 Bf7 Be4 g5+ Kf3 Be8 Bc3 Kg7 Bb7 Bd7 Kg4 h5+ Kxh5 Bxf5 
 15	+0.13 	1.18M  	0:00.05	Rxa8+ Bxa8 Bd2 Kh7 Kg3 Bd5 Be1 Bf7 Be4 Be8 Bd2 g6 fxg6+ Bxg6 Bb7 Bd3 Bxa6 f5 Kh4 
 14	+0.10 	1.01M  	0:00.04	Rxa8+ Bxa8 Bd2 Kh7 Kg3 Bd5 Be1 h5 Kh4 Bf7 Be4 g5+ fxg6+ Bxg6 Bb7 Kh8 Bxa6 Bf5 
 13	+0.12 	933252	0:00.04	Rxa8+ Bxa8 Bd2 Kh7 Kg3 Bc6 Bc3 Be8 Bd3 Bf7 Be4 g6 Kf4 gxf5 Bb7 Kg6 Bxa6 
 12	+0.12 	801727	0:00.03	Rxa8+ Bxa8 Bd2 Bc6 Bb3+ Kf8 Kg3 g5 fxg6 Kg7 Bc2 Be8 Bf5 Bxg6 Bc8 Bc2 Bxa6 h5 
 11	+0.17 	392114	0:00.02	Rxa8+ Bxa8 Bd2 Kf7 Bb3+ Ke8 Ke3 Bc6 Kf4 Kd7 Bb4 h5 Bf8 
 10	+0.09 	291401	0:00.01	Rxa8+ Bxa8 Bd2 Bc6 Bb3+ Kh7 Be6 g5 fxg6+ Kxg6 Bc8 h5 Bxa6 h4 
  9	+0.08 	196324	0:00.01	Rxa8+ Bxa8 Bd2 Bc6 Ke3 Kf7 Kd4 h5 Be1 Bd7 
  8	+1.88 	20538  	0:00.00	Bb3 Rd8 Bb6 Bxb3 Bxd8 Bc2 Rxa6 Bxf5 
  7	+1.97 	14926  	0:00.00	Bb3 Rd8 Bb6 Bxb3 Bxd8 h5 Rxa6 
  6	+2.41 	7373    	0:00.00	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 h5 Ra1 h4 
  5	+2.25 	5238    	0:00.00	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 h5 
  4	+2.23 	4089    	0:00.00	Bb3 Bxb3 Rxa8+ Kh7 Rxa6 
  3	+2.54 	3349    	0:00.00	Bb3 Bxb3 Rxa8+ Kh7 
  2	+2.60 	2535    	0:00.00	Bb3 Bxb3 
  1	+2.26 	949      	0:00.00	Bb3
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BBauer
Posts: 658
Joined: Wed Mar 08, 2006 8:58 pm

Re: New test suite "Tactical Insanity"

Post by BBauer »

peter wrote: ↑Tue May 29, 2018 11:08 pm
BBauer wrote: ↑Tue May 29, 2018 10:37 pm
I folowed your line up to the following position after 15. Ra7 {132.6/61 CFtbs}
6k1/R5p1/5p1p/3b1K2/3B4/8/8/8 b - - 19 15
Here sf gives
FEN: 6k1/R5p1/5p1p/3b1K2/3B4/8/8/8 b - - 19 15

St-orig-18-05-17:
...
52/63 01:36 266.679k 2.749k -3,04 Bd5-c4 Bd4-c5 Bc4-d5 Ra7-e7 Bd5-c4 Bc5-d6 Bc4-b3 Re7-d7 Bb3-c4 Bd6-b4 Bc4-a2 Rd7-d8+ Kg8-h7 Bb4-c5 Ba2-c4 Rd8-d7 Bc4-f1 Kf5-f4 Bf1-h3 Rd7-a7 Kh7-g8 Kf4-e4 Bh3-e6 Bc5-d6 h6-h5 Bd6-c5 Be6-g4 Ra7-a8+ Kg8-h7 Ra8-a4 Kh7-g8 Ke4-f4 g7-g5+ Kf4-g3 Bg4-e6 Bc5-e7 h5-h4+ Kg3-h2 Kg8-f7 Be7-d8 Kf7-g6 Ra4-a6 Kg6-f7 Kh2-g2 Be6-d5+ Kg2-f2 Bd5-e6 Ra6-d6 g5-g4 Kf2-g2 h4-h3+ Kg2-h2 f6-f5 Bd8-g5 Be6-c8 Rd6-h6 Bc8-d7 Rh6-b6 Bd7-c8 Kh2-g3 Bc8-d7 Rb6-f6+ Kf7-e8 Kg3-h2

So the score is -3.04 and I cannot see your 15. Ra7 {132.6/61 CFtbs}
Sorry.
Could you give a winning line?
Instead of your (output's) 15...Bc4 16.Bc5 Bd5 17.Re7 (which might work still but is the earliest deviation and I hope to get you a shortest line you can reproduce) 17.Rc7.

So

r5k1/R5p1/p4p1p/1p1b1P2/8/4B3/2B2K2/8 w - - 0 1

1. Bb3 Bxb3 2. Rxa8+ Kh7 3. Rxa6 Bc2 4. Rb6 b4 5. Rxb4 Bxf5 6. Rb5 Bh3 7. Kf3
Bc8 8. Bg1 Bh3 9. Ra5 Be6 10. Kf4 Kg6 11. Rb5 Kh7 12. Rb7 Bc4 13. Bd4 Kg8 14.
Kf5 Bd5 15. Ra7 Bc4 16. Bc5 Bd5

and then

6k1/R5p1/5p1p/2Bb1K2/8/8/8/8 w - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

17.Rc7 Bb3 18.Rc8+ Kh7 19.Bf8 Bf7 20.Ra8 h5 21.Ra7 Kg8 22.Ba3 Bb3 23.Kg6 Bc2+ 24.Kxh5 Bf5 25.Kh4 Be6 26.Kg3 Bd5 27.Kf4 Bg2 28.Ke3 Bf1 29.Kd4 Bg2 30.Kc5 Kf8 31.Kd6 Bh3 32.Kc7+ Kg8 33.Kd8 Bg2 34.Ke7 Bh1 35.Bb2 Bf3 36.Ra3 Bg4 37.Ra8+ Kh7 38.Kf8 Be6 39.Ra7 Kg6 40.Rxg7+ Kf5 41.Ke7 Bc4 42.Bxf6 Kf4
+- (132.60) Depth: 59/58 00:00:06 202MN, tb=4090739

At move 24 of this output- line you have already a won 7some position.

Without full Syzygys you'll have to have some more tries probably, but let's just see, maybe you'll get some mating score even without tbs sooner or later. The Lomonosov- position after 24.Kxh5 anyhow is #37 only:

6k1/R5p1/5p2/7K/8/B7/2b5/8 b - -

1...Bd1+ 2.Kh4 Bc2 3.Kg4 Bd1+ 4.Kf4 Bc2 5.Ke3 Bd1 6.Kd4 Bc2 7.Kd5 Bb3+ 8.Kd6
Kf8 9.Kd7+ Kf7 10.Kd8+ Kg6 11.Bb2 Bc2 12.Ke8 Kf5 13.Rxg7 Ke6 14.Re7+ Kd6 15.
Bxf6 Bb3 16.Re5 Bc2 17.Ra5 Bd1 18.Bg5 Bh5+ 19.Kd8 Bf7 20.Bf4+ Ke6 21.Re5+ Kf6
22.Kd7 Bg6 23.Kd6 Bf5 24.Be3 Bg4 25.Bd4 Bf5 26.Re1+ Kg6 27.Rg1+ Kh5 28.Ke5 Bg4
29.Kf4 Be6 30.Rg5+ Kh6 31.Bg7+ Kh7 32.Ke5 Bd7 33.Rg3 Bh3 34.Kf6 Bg4 35.Rxg4
Kg8 36.Bf8+ Kxf8 37.Ke6 Ke8 38.Rg8#

Kind regards,

P.S. I see you edited you posting in the meantime
<
PS: In the line I metioned 11. ..Kh7 is a blunder. 11. ..Kf7 holds the draw.
>

Nope, Bernhard, after 11...Kf7 instead of ...Kh7:

8/5kp1/4bp1p/1R6/5K2/8/8/6B1 w - - 0 1

Analysis by Cfish Tactical 2.0 250518 64 POPCNT NUMA:

12.Rb7+ Kf8 13.Bc5+ Kg8 14.Ke4 Bh3 15.Ra7 Be6 16.Bd6 h5 17.Bc5 h4 18.Kf4 h3 19.Kg3 Bf5 20.Re7 Kh7 21.Bg1 Kg8 22.Kf4 Bc2 23.Kg4 Kf8 24.Ra7 Be4 25.Kxh3 Bd5 26.Bc5+ Kg8 27.Rc7 Bc4 28.Kg4 Bd3 29.Ba3 Be4 30.Kf4 Bd3 31.Ke3 Bf5 32.Kd4 Be6 33.Ra7 Bb3 34.Kc5 Ba2 35.Kd6 Kf8 36.Rc7 Bb3 37.Kd7+ Kf7 38.Kd8+ Kg8 39.Ke7 Bd5 40.Rc8+ Kh7 41.Kf8
+- (132.50) Depth: 53/72 00:01:15 2405MN, tb=27576703

BTW you saw the output with 132.6- eval at the starting position, did you?

And you don't start pondering if your SF at your hardware simply is missing the full Syzygys to make you see you're wrong by yourself, don't you? And or some more hash maybe too?
And or some more patience of yours at going the lines forth and back?
:)
Now I was able to see a rising score in the B3 line.
White puts the king on f4 and creates a zugzwang position. When black has to move pawns he is lost.
So I think Peter is right in
-- White has a forced win
-- There is no fortress

Whether this is a good test-position or not is another question.
Kind regards
Bernhard
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